Add a new QUIC platform API for text utilities.

net/tools/quic/quic_client_test.cc

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/tools/quic/quic_client.h"
 
 #include <dirent.h>
 #include <stdio.h>
 
 #include <memory>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
-#include "base/strings/string_util.h"
+#include "net/quic/platform/api/quic_text_utils.h"
 #include "net/quic/test_tools/crypto_test_utils.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "net/tools/epoll_server/epoll_server.h"
 #include "net/tools/quic/test_tools/quic_client_peer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 namespace test {
 namespace {
 
 const char* kPathToFds = "/proc/self/fd";
 
 // Counts the number of open sockets for the current process.
 size_t NumOpenSocketFDs() {
   base::FileEnumerator fd_entries(
       base::FilePath(kPathToFds), false,
       base::FileEnumerator::FILES | base::FileEnumerator::SHOW_SYM_LINKS);
 
   size_t socket_count = 0;
   for (base::FilePath entry = fd_entries.Next(); !entry.empty();
        entry = fd_entries.Next()) {
     base::FilePath fd_path;
     if (!base::ReadSymbolicLink(entry, &fd_path)) {
       continue;
     }
-    if (base::StartsWith(fd_path.value(), "socket:",
-                         base::CompareCase::SENSITIVE)) {
+    if (QuicTextUtils::StartsWith(fd_path.value(), "socket:")) {
       socket_count++;
     }
   }
 
   return socket_count;
 }
 
 // Creates a new QuicClient and Initializes it. Caller is responsible for
 // deletion.
 QuicClient* CreateAndInitializeQuicClient(EpollServer* eps, uint16_t port) {
@@ skipping 59 matching lines @@
   // Clean up UDP sockets.
   QuicClientPeer::CleanUpUDPSocket(client.get(), client->GetLatestFD());
   EXPECT_EQ(number_of_open_fds + 2, NumOpenSocketFDs());
   QuicClientPeer::CleanUpUDPSocket(client.get(), client->GetLatestFD());
   EXPECT_EQ(number_of_open_fds + 1, NumOpenSocketFDs());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net